-71.5% is the change from 642 to 183
Calculation steps:
[( 183 - 642 ) ÷ 642] x 100 = -71.5%
Formula
Percentage change = [(183 - 642) / 642] x 100
Subtract the new number by the original number
183 - 642 = -459
-459 ÷ 642 = -0.7149532710280374
-0.7149532710280374 x 100 = -71.5%